Crinsane

Display recent posts in a widget. Where the default widget only let’s you display recent posts of the ‘post’ posttype, with RG Recent Posts you can specify from which post type you want to display the recent posts.
<h3>Version 1.1</h3>
<ul>
<li>Added Dutch translation.</li>
</ul>
<h3>Version 1.1.1</h3>
<ul>
<li>Added Spanish translation. Thanks to Andrew Kurtis (webhostinghub.com)</li>
</ul>

RG Recent Posts

Display recent posts in a widget. Specifiy which post type should be listed.

lucdecri

wp_helper have 4 distinct plugin.
<ul>
<li>posttype_helper</li>
<li>taxonomy_helper</li>
<li>attachment_helper</li>
<li>adminpage_helper</li>
</ul>
each provides additional features that allow you to simplify the development of new posttype, new taxonomies, new pages and menu administrator, etc.
Detailed list of additional function is coming soon
You must check if wp_helper is actived before active your plugin, with similar code : {{{
if (defined(‘WP_HELPER’)) { 
 // your code here } else { // if defined(WP_HELPER) add_action(‘admin_notices’, ‘myplugin_noframework_notice’); }
function myplugin_noframework_notice(){ global $pagenow; if ( $pagenow == ‘plugins.php’ ) { echo ‘
To activate this plugin you must install and activate WP HELPER plugin .
‘; } }
}}}

WP Helper

It provides additional functions and feature that allow you to simplify the development in your plugin  new posttype, new taxonomies, new pages and me …

RG Recent Posts vs WP Helper